Eufy FamiLock S3 Max
Last updated June 2026

Eufy FamiLock S3 Max

4.4
411 ratings
Launch Year: 2025

Model: FamiLock S3 Max

30% OFF
$399.99
$279.98
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At a glance

Summary

Everything this door lock supports, grouped by category.

Size & Materials
Weather Resistance (IP65)Outer Panel Dimensions (200 x 78 x 31 mm)
Power
Backup Battery (4x AAA backup batteries)
Connectivity
2.4 GHz WiFi
Integrations
Google HomeAlexaApple HomeKitSamsung SmartThingsMatter
Lock/Unlock System
RemotePasscodePhysical Key
Automatic Lock / Unlock
Afer Door is closed
Alerts
Door Locks/UnlocksLow Battery Alert
Video
HD Video2K VideoNight VisionInternal StorageMotion Detection
Features
Doorbell

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Company

BrandEufy
Headquarters
China flagChina
Full specifications

Every spec, organized

Browse the full breakdown by category. Tap the on any row for what it means, or the for sources and documentation.

Size & Materials

Weather Resistance

IP65

Outer Panel Dimensions

200 x 78 x 31 mm

Inner Panel Dimensions

?

Weight

?

Available in colors

NO

Power

Battery Type

Built-in

Battery Life

4 months

Backup Battery

4x AAA backup batteries

Connectivity

2.4 GHz WiFi

YES

5 GHz WiFi

NO

Bluetooth

NO

Z-Wave

NO

Zigbee

NO

Thread Protocol

NO

Other

NO

Integrations

Google Home

YES

Via Matter

Alexa

YES

Via Matter

Apple HomeKit

YES

Via Matter

Samsung SmartThings

YES

Via Matter

Home Assistant

?

IFTTT

?

Matter

YES

Lock/Unlock System

Remote

YES

Built-in Wi-Fi, no bridge required

Bluetooth

NO

Passcode

YES

Touchscreen keypad

Fingerprint

NO

Face Recognition

NO

NFC Tag

NO

Apple Home Key

NO

Physical Key

YES

Automatic Lock / Unlock

When Away

NO

Afer Door is closed

YES

By Geolocation

?

Alerts

Door Locks/Unlocks

YES

Tamper-proof Alert

?

Low Battery Alert

YES

Multiple Unlocking Failure Alert

?

Video

HD Video

YES

2K HDR camera, f/1.6 lens, 150° Head-to-Toe wide-angle view

2K Video

YES

Night Vision

YES

Internal Storage

YES

16 GB built-in storage

MicroSD Card Slot

NO

Motion Detection

YES

Range Of Detection

?

Customizable Area

?

Sensors

Door Open/Close

?

Features

One-Time Password

?

Periodic Password

?

Anti-peep Password

?

Emergency Fingerprint

NO

Doorbell

YES

Built-in 2K HDR video doorbell with Rear Lock Video Screen

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